31315240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71171}}^1$

素因数の和:71193

約数の個数: 32

約数和(自身を含む): 76865760

約数和(自身を除く): 45550520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71171, 142342, 284684, 355855, 569368, 711710, 782881, 1423420, 1565762, 2846840, 3131524, 3914405, 6263048, 7828810, 15657620, 31315240]

約数ペア:

[(1, 31315240), (2, 15657620), (4, 7828810), (5, 6263048), (8, 3914405), (10, 3131524), (11, 2846840), (20, 1565762), (22, 1423420), (40, 782881), (44, 711710), (55, 569368), (88, 355855), (110, 284684), (220, 142342), (440, 71171)]